Estimating coefficients for certain subclasses of meromorphic and bi-univalent functions.

In the present paper, we introduce two interesting subclasses of meromorphic and bi-univalent functions defined on . For functions belonging to these subclasses, estimates on the initial coefficient and are obtained. Some other closely related results are also represented.

Nano drug delivery systems and gamma radiation sterilization.

In recent years, drug delivery systems such as liposomes and microparticles have been used in clinic for the treatment of different diseases and from a regulatory point of view, a parenterally applied drug and drug delivery systems must be sterile and pyrogen free. Radiation sterilization is a method recognized by pharmacopoeias to achieve sterility criteria of parenterals. It has the ability to kill microorganisms in therapeutic products.